Hotcake Slough - Main Time-lapse Video 2013 Photo Credits: Chas Jones No flash player has been set up. Please select a player to play Flash videos. Video not playing? Update your browser or download the video clip This time-lapse video shows how conditions at the Hotcake Slough - Main study site changed through the 2013 winter to spring season. It shows how conditions can change very rapidly. Process Observed: Open WaterGroundwater Upwelling Date Process Observed: Monday, February 11, 2013 to Saturday, June 1, 2013 Galleries: Hotcake Slough - Main Gallery